FBI launch investigation after two bombs EXPLODE in bookstore in busy Denver shopping mall

Two bombs were detonated inside a Borders Bookstore this morning in a suburban Denver shopping mall, the FBI said.

Bomb squad officers were dispatched along with police and FBI agents after the two 'crude' bombs were located inside the store, in Colorado Mills Mall in Lakewood, which had been broken into during Friday night.

Police discovered evidence of forced entry and found two explosive devices.

Colorado Mills Mall

Scene: The bomb squad was called to Colorado Mills Mall in Lakewood today after two bombs were discovered inside a Borders book store

In a statement the FBI said: 'The two small crude devices partially functioned in a nominal manner causing no damage to the Mall and only minimal damage to a small area of the interior of the Borders Bookstore.'

'No injuries were reported and no threats have been communicated to Borders Bookstore or the Mall.'

Today police were working in the area where the blasts occurred.

Police have made no arrests but the FBI is investigating.

This is the third set of bombs to be found in the Denver area in the last two months.

In April Earl Albert Moore, 65, was arrested on suspicion of planting a pipe bomb at a Littleton mall on the 12th anniversary of the Columbine High School attack.

Moore’s arrest came after a manhunt when the bomb was discovered at Southwest Plaza Mall on April 20.

And on June 5 members of the Northern Colorado Bomb Squad destroyed a suspicious package found in a popular Fort Collins shopping centre.

Floor plan

Floor plan: The bombs were found in the Borders book store at Colorado Mills Mall

The Columbine massacre occurred on April 20 1999, at Columbine High School, in Colorado, near Denver. 12 students and one teacher were killed, and 24 were left injured when two seniors, Eric Harris and Dylan Klebold, embarked on a filling spree with pipe bombs and automatic weapons.

It is the fourth-deadliest school massacre in U.S. history.

Borders, until recently the second-largest US bookstore chain, filed for bankruptcy in February, announcing the closure of 30 percent of its over 640 stores in the United States.

The chain, which had 6,100 full-time and 11,400 part-time employees before the closure announcements, has lost millions of dollars in recent years as the book industry faces online competition and transitions to digital products.

The comments below have been moderated in advance.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.

Who is this week's top commenter? Find out now